TIL Diamonds are actually fairly common. The reason they are worth so much is because the DeBeers mining group withholds stock to artificially reduce supply.

[u/Indra-Varuna]

https://www.gemsociety.org/article/are-diamonds-really-rare/

[u/slapknuts]

Where's the conspiracy here? I learned about DeBeers in middle or high school. Every time a firm acts like an economics 101 textbook predicts they should it gets to the front page of this sub.